The IcedTea project provides a harness to build the source code from OpenJDK using Free Software build tools, along with additional features such as a PulseAudio sound driver and support for alternative virtual machines.

We believe that this 2.2 release takes IcedTea beyond u4. In addition to the changes in the public OpenJDK7 repository for u4, we also include a number of additional
fixes:

Don’t create debuginfo files if not stripping.

Generalise ucrypto cryptography tests.

Skip wrap mode tests if wrap mode is not available.

Zero fails to build in hsx22+, fix for hsx22 after runs gamma OK, hsx23 still nogo.

Support systems with outdated versions of gio 2.0.

Turn off strict aliasing for ExtensionSubtables.cpp (now S7171223 in OpenJDK8)

In addition, IcedTea includes the usual IcedTea patches to allow builds against system libraries and to support more estoric architectures.

Please note support for alternative VM solutions (CACAO, Shark, Zero) may be lacking in this release. Specifically, Zero/Shark are known not to work with
HotSpot 23, the version included in this release. Patches are welcome; please contact the mailing list (distro-pkg-dev@openjdk.java.net) and/or file bugs (http://icedtea.classpath.org/bugzilla) under the appropriate component.